H3C Technologies H3C S12500-X Series Switches - Manual (Page 67)

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IGMP configuration examples
Network requirements
As shown in Figure 22 :
• VOD streams are sent to receiver hosts in multicast.
• Receiver hosts of different organizations form stub networks N1 and N2. Host A and Host C are
receiver hosts in N1 and N2, respectively.
• IGMPv2 runs between Switch A and N1, and between the other two switches and N2.
• Switch A acts as the IGMP querier in N1. Switch B acts as the IGMP querier in N2 because it has
a lower IP address.
Configure the switches to achieve the following goals:
• The hosts in N1 join only the multicast group 224.1.1.1.
• The hosts in N2 can join any multicast groups.
Figure 22 Network diagram
Configuration procedure
1. Assign the IP address and subnet mask to each interface as shown in Figure 22 . (Details not
shown.)
2. Configure OSPF on the PIM network to make sure the following conditions are met: (Details not
shown.)
{
The switches are interoperable at the network layer.
{
The switches can update their routing information.
3. Enable IP multicast routing, and enable IGMP and PIM-DM: